LMMS is easy-to-use MIDI sequencer/composer. It is a free, open source software. LMMS is well supported by its online community.

It is a standalone application with a number of detailed full featured and versatile free music composer. For starter its hard to judge where to start from, so my suggestion to you is just start using the LMMS wiki.

The plugins supported are VST, VSTi and LADSPA. It is better to say LMMs is a “one stop music shop.” If we talk about the performance of this app, it is awesome, it is ultra stable and amazing freeware.

Make music online Together with old and new friends. It’s easy, anywhere. With Soundtrap you make music online. You can plug in your own instrument, use the software instruments available in Soundtrap or just record a song directly with your computer microphone. It’s super-easy!

Soundtrap works on Mac, Windows, iPad, Android tablets and phones, Linux and ChromeBooks. It allows you to start, edit and collaborate on your recordings wherever you are. Everything is stored in the cloud.